Plaintiff HVC Inc. was a trustee of the Honda Lease Trust. During the audit period at issue, several car dealerships entered into thousands of leases with customers (lessees) pursuant to lease plan agreements between the dealerships, the trust, and the servicer of the trust. Under the leases, the lessees were responsible for submitting the vehicle registration renewal application and renewal fees to the department of motor vehicles on behalf of the trust. Upon receipt of the renewal application and fee, the department sent the vehicle registration card to the trust, and the trust forwarded the vehicle registration card to the appropriate lessee. After conducting a sales and use tax audit for the audit period from April 1, 2001 through October 31, 2004, Defendant Pamela Law, the then commissioner of revenue services, issued a deficiency assessment against Plaintiff, concluding that the renewal fees constituted taxable gross receipts of the trust and, therefore, were subject to the sales tax. The trial court rendered summary judgment partially in favor of Defendant. The Supreme Court affirmed, holding that the renewal fees paid by the lessess qualified as Plaintiff's gross receipts subject to sales tax under Conn. Gen. Stat. 12-408(1).

Petitioners were nonresidents who neither lived nor worked in Maryland but had a source of income in the State. In 2005, the Comptroller of the Treasury issued a notice of assessment against Petitioners' 2004 joint Maryland nonresident income tax returns for failure to pay the Special Nonresident Tax (SNRT). The assessment included the amount owed for the SNRT and interest. Petitioners challenged, on federal and state constitutional grounds, the State's authority to impose the SNRT. The tax court (1) declared the SNRT to be constitutional, and (2) denied Petitioners' request to abate the accrued interest, reasoning that the court lacked the authority to do so. The circuit court affirmed as to the constitutionality of the tax but determined that the tax court could abate the interest assessment. The court of special appeals affirmed. The Court of Appeals affirmed, holding (1) the SNRT does not violate the Commerce Clause, the Equal Protection Clause, or the Privileged and Immunities Clause of the U.S. Constitution; (2) the SNRT does not violate Maryland's equal protection doctrine; and (3) the tax court's power of review extends to the abatement of interest assessments. Remanded to consider whether Petitioners were entitled to the abatement of interest.

Taxpayers appealed the district court's denial of their Rule 60(b) motion to vacate a 1967 tax judgment against them. Taxpayers argued that the government committed fraud on the court during their 1967 suppression hearing and their subsequent appeal to this court. Taxpayers also argued that the judgment should be vacated under United States v. Throckmorton because taxpayers' business associate who sometimes served as their attorney, gave information to the government. The court concluded that, although the evidence uncovered by taxpayers showed some misconduct on the part of the government, it was insufficient to demonstrate fraud on the court. The court also held that because taxpayers have not shown that the business associate was their attorney rather than their business associate at the time he informed on taxpayers, the court rejected taxpayers' Throckmorton claim.

Taxpayer was awarded and received a net $5.25 million qui tam payment from the government as a "relator" in two lawsuits settled against a government contractor under the False Claims Act (FCA), 31 U.S.C. 3729-3733. Taxpayer asserted that the award was not taxable. The court held that the Tax Court correctly concluded that the entire qui tam payment award to taxpayer under the FCA was includable in gross income and that taxpayer was liable for the I.R.C. 6662(a) accuracy-related penalty.

Ivory Homes purchased various concrete products from a company that, when it delivered the products, provided an invoice that charged a single sales price without indicating separate delivery charges. Ivory Homes then discovered if it structured its transactions with the company differently and bargained for separate and independent delivery charges, the charges would not be taxable. Subsequently, Ivory Homes filed a refund request with the Utah Taxpayer Services Division for sales tax it paid for several years on expenses associated with the concrete products. The Division denied the refund. The Utah State Tax Commission also denied the refund request. The Supreme Court affirmed the Tax Commission's decision that it did not erroneously receive any tax and that Ivory Homes was not entitled to a tax refund where (1) under a substantial evidence standard of review, the Commission correctly made findings of fact that the parties did not intend delivery charges in their original transactions; and (2) alternatively, a plain language interpretation of the Refund Statute requires that the Tax Commission commit some error in its receipt of taxes before a taxpayer is entitled to a refund.

The Tribes of the Yakima Nation claimed that the principle of Indian tax immunity had been violated by the State of Washington's current cigarette excise tax, which the Tribes argued left their retailers liable for payment of the tax when retailers sold cigarettes to non-Indians. The court held that, although some elements of Washington's cigarette tax law had been modified over the past thirty years, the court concluded that none of those changes had materially altered the legal incidence of the cigarette tax approved of in Confederated Tribes of Colville Indian Reservation v. Washington. Accordingly, the court affirmed the district court's grant of summary judgment to the state.

The Mississippi Tax Commission (Commission) assessed a contractor’s tax against Walter Akins, d/b/a Akins Construction Company. Akins challenged the assessment administratively. After exhausting his administrative remedies, Akins appealed to the Chancery Court. The chancellor dismissed his complaint for failure to comply with Mississippi Code Section 27-77-7 (Rev. 2005), which required a taxpayer seeking judicial review to pay the amount ordered before filing the petition or attach a security bond, for double the amount in controversy, with the petition to appeal. Akins appealed to the Supreme Court, arguing that he was deprived of his right to due process because the appeal provisions codified in Section 27-77-7 are unconstitutional. Finding that the statute does meet constitutional standards and that Akins failed to pay the tax or post a bond in order to grant jurisdiction to the chancery court, the Court affirmed the chancellor's decision.

Plaintiff, a Delaware taxpayer, asserted claims against defendant, the State of Delaware Auditor of Accounts, for claims related to defendant's alleged noncompliance with 29 Del. C. 2906(f), which stated, in part, that the "Auditor of Accounts shall conduct postaudits of local school district tax funds budget and expenditures annually" and for claims related to defendant's alleged violation of Delaware's Freedom of Information Act (FOIA), 29 Del. C. ch. 100., by failing to provide plaintiff with copies of certain employee time sheets which he duly requested. The court held that it lacked subject matter jurisdiction over the audit claims and the FOIA claims must be dismissed because of plaintiff's failure to exhaust administrative remedies.

McCarthy Holdings filed a complaint against Vincent Burgher, seeking a declaratory judgment concerning an easement agreement. McCarthy, the owner of the dominant estate, sought a declaration that it had the right, as a matter of law, to bar Burgher, the owner of the servient estate, from any use of the easement. The circuit court found that the easement agreement was unambiguous and that it did not bar Burgher from reasonable use of the easement area. McCarthy appealed, arguing that the circuit court erred in construing the easement agreement. The Supreme Court affirmed, holding (1) the circuit court did not err in denying McCarthy's request to bar Burgher, as a matter of law, from any use of the easement area based upon the easement agreement; and (2) the circuit court did not improperly consider parol evidence in interpreting the easement agreement.

This case involved a constitutional challenge to an occupation tax levied pursuant to Neb. Rev. Stat. 2-3226.05. Appellant landowners, who were residents and taxpayers of natural resources districts in the Republican River basin, brought an action for declaratory and injunctive relief seeking to have the occupation tax declared unconstitutional and its levy and collection enjoined. The district court upheld the constitutionality of the occupation tax, determining that it did not violate the Nebraska Constitution as (1) the occupation tax was not a property tax but, rather, an excise tax levied upon the activity of irrigation; (2) the occupation tax did not result in a commutation of taxes; and (3) section 2-3226.05 was not special legislation. The Supreme Court affirmed, holding (1) the judgment in Garey v. Nebraska Department of Natural Resources did not bar this action under the doctrine of res judicata; and (2) the landowners did not meet their burden of establishing that the occupation tax was unconstitutional.